/Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneEvaluationTree.h
Construction from the node's parent's children entry handle, and this node's index within its parent's children
FMovieSceneEvaluationTreeNodeHandle ( [FEvaluationTreeEntryHandle](API\Runtime\MovieScene\Evaluation\FEvaluationTreeEntryHandle) InChildrenHandle, int32 InIndex )